Lefsrud & Meyer

2012 Lefsrud & Meyer did a study of studies to conclude 36% have a "strong belief that climate change is happening, that it is not a normal cycle of nature, and humans are the main or central cause." (agree with IPCC), yet 64% fall into one of the 4 categories that are skeptical of alarmist global warming claims. And that the explicit endorsements in AGW theory has declined from 1993-2008.